Oil saver



March 28, 1933. Q s CRICKMER 1,903,093

OIL SAVER Filed March 24, 1930 4 Sheets-Sheet l gmnto'o C/Zar/e/ f Cr/ckmer Match 28, 1933. i c. s. CRICKMER 1,903,093

OIL SAVER Filed March 24, 1930 4 Sheets-Sheet 2 m Zgz l 13 3' lb @m vi- /7 x m D '%'g,7

" I gmto'c C/zar/ef far/6m March 28, 1933. c s. CRIICKMER OIL SAVER Filed March 24, 1930 4 Sheets-Sheet 3 gwwntoo Char/e1 Cr/c/ er 9 Z n w m aw w nf M March 28, 1933. c, s. CRICKMER OIL SAVER 4 Sheets-Sheet 4 Filed March 24, 1930 jwuentoz Char/w CHM/22a Patented Mar. 28, 1933 UNITED STATES PATENT OFFICE CHARLES s. cnrcmuna, or DALLAS, TEXAS, nssmnoiz 'ro m eumnnson CORPORA- TION, ,on menus, rrnxns, A. CORPORATION or. DELAWARE OIL SAVER Application filed March'24, 1930. Serial No. 488,597.

This invention relates to new and useful improvements in oil savers.

One object of the invention is to provide an oil saver which will be strong, compact and convenient to install and to operate.

Another object of the invention is to pro-' vide improved packing members having reinforcing elements molded therein, whereby bolt holes and bolts are avoided. The advantage of such a structure is that where the ushing and' pulling of the packing members y the adjusting means ordinarily pulls the bolts loose from the packing members and destroys them, the molded cage will obviate the trouble.

A further object of the invention is to provide each packing member with rear sealing lips and to embed therein reinforcing flanges which support the lips and prevent the pressure fluid from blowing by the lips.

Still another object of the invention is to provide improved slips to be used with the device and a slip holder for the same. The

drawings in'which an example of the inven tion is-shown, and wherein:

partly in section of an oil saver constructed in accordance with the invention,

Figure 2 is an elevation at right angles to "Fig.

Figure 3 is a plan view, 4

Figure 4 is a horizontal cross-sectional view taken on the line 4-4 of Fig. 1,

Figure 5 is a perspective View of a slip section,

the slip holder sections, Figure 7 is a perspective view of one of the pedestal sections,

Figure 8 is a perspective view of one of the cages,

said slips being free from bolts, having few Figure 1 is a view partly in elevation and Figure dis a perspective viewof-one of Figure 9 is a horizontal cross-sectional view taken on the line 99 of Fig. 8.

Fi re 10 is a front elevation of one of the packing members,

gigure 11 is a side elevation of the same, an

Figure 12 is a view of one of the packing members, partly in plan and partly in section. 1

In the drawings the numeral 10 designates a housing section or member and 11 a complementary housing section or member secured thereto by horizontal bolts 12 passing through cars 13 on each side. Each section has a rectangular packing chamber 14 as is shown best in Fig. 4. Each chamber has a top 15 and a bottom 16. The sections when united form a transverse housing the bottom 16 of which is mounted on the top of a flanged circular base or pedestal 17 and secured thereto by bolts 18. Caps 19 are secured to the sections 10 and 11 by studs 20 and nuts 21. The caps are easily removed by taking 011 the nuts.

Packing members 22 are slidably mounted 75 a in the chambers 14 and each member is substantially semi-circular in plan as'is shown in Figs. 4 and 12. These members are made of elastic material such as molded rubber. Each member includes a plurality of superposed semi-circular ribs or bosses 23 having spacing grooves 24 therebetween.

When the packing members are brought together the bosses form annular flexible packing rings rounded in cross-section so as to fit a cylindrical object as a pipe, casing or rod, but sufliciently flexible to permit a collar'or coupling to pass therethrough. In order to form a seal or fluid-tightjoint, contacting faces of-the packing members are formed with alternating tongues 25 and grooves 26, (Figs. 4, 10, 11 and 12) When the members are brought together the tongues of one seat in the grooves of the other.

One of the important features of the in-' vention is the molding of a cage or cove 27 in each packing member 22. These cages act to reinforce the members and obviate the use of bolts. Each cage (Figs. 8 and 9) is curved to conform to its member and is in skeleton form to reduce weight.

Each member 22 has top and bottom sealing lips 28 on its rear side and each cage has rearwardly directed semi-circular flanges 29 embedded in these lips. The lips have a snug sliding fit on the inner surfaces of the top 15 and bottom 16 of each chamber 14. The cage reinforces the packing member and the flanges support the lips and prevent their distortion by the flowing pressure fluid, thus sealing oi the chambers.

Each cage has a central boss 30 protruding from the central rear portion of the member and provided with a V-shaped keeper 31. Follower screws 32 each have a circular head 33 rotatively confined in one of the keepers and in turn are mounted in bosses 34 in the caps 19. Double handles 35 are secured to the outer ends of the screws. By rotating the screws the members 22 are pushed toward each other or are retracted. The pushing and pulling strain is sustained by the cages and the packers or members 22 are not injured or torn, as is the case where bolts are used.

The bottoms 16 have semi-circular open-v ings 36 which register with the bore of the pedestal 17. These openings are much larger in diameter than the pipe or casing, so that when the packing members 22 are retracted toolsmay be passed through the housing.

An elongated split socket 37 is mounted on the housing. This socket includes two semicircular members, one of which is shown in Fig. 6. Each of the socket members has diam metrically opposite ears 38 receiving bolts 39 whereby said members are fastened together at their upper ends. Each socket member has a base flange 40 resting on the top 15 of the housing and a depending semi-circular shank 41 snugly engaging in the circular opening 42 in the top of the housing.

Flanges 40 are provided with key-hole slots 43 and bolts 44 screwed into the top 15 will pass through the large openings of the slots and engage in; the necks thereof when the socket is turned clockwise (Fig. 3) It will be seen that by loosening the bolts 44 and turning the socket 37 counter-clockwise said socket may be readily lifted from the housing. By making the socket in two pieces. it may be disassembled and removed when a pipe or a casing extends therethrough. The same is also true of the housing.

The socket 37 has a downwardly tapered annular slip seat 45 into which any suitable slips may be inserted. In order to assure a proper gripping of the pipe A I have shown slips made in two sections B and C respectively, for convenient handling. Each slip section is the same and comprises a pair of upright quadrants 46 having vertical cylindrical toothed faces 47 and inclined backs 48 conforming to the seat 45. A semi-circular hanger 49 has an internal dove-tail groove 50 loosely receiving dove-tails 51 on the upper reduced ends of the quadrant.

The dove-tails are sulflciently loose in the hanger to have enough play to properly adjust themselves to the seat 45 and the pipe A. The hanger has an outwardly extending handle 52 and by grasping the opposite handles the slip sections may be readily lifted from the socket. The dove-tails 51 terminate short of the ends of groove 50 and are retained in said groove by stops 53 welded in the ends of the groove. When it is desired to replace a sector the stop is knocked out and after the sector has been replaced another stop is welded in place.

It will be noted that the parts of the oil saver are very stout and securely fastened together. This is necessary because this particular device is designed to withstand high pressure. The caps 19, because of their mounting upon the studs 20 may be quickly and easily removed and likewise replaced, the studs forming guides and it only being neces sary to remove the nuts. The packing members 22 are designed to overcome certain objections now found in the field. The lips 28 together with their reinforcing flanges 29 snugly embrace the top 15 and the bottom 16 of the housing and are not distorted by the flexing of the bosses 23, therefore the pressure fluid cannot leak by and get in behind the packing members. The cages 27 being moulded in the members is very important and is an improvement upon the bolts usually employed. These embedded cages distribute the strain due to pulling and pushing when the packing members are adjusted.

It will be seen that when the packing members are withdrawn into the chambers 14 and the caps 19 the bosses 23 will be out of the path of a tool passing through the openings 36 and 42. Should the socket 37 restrict such passage, it can be removed.

Various changes in the size and shape of the different parts, as well as modifications and alterations, may be made within the scope of the appended claims.

What I claim is:

1. A packin member for an oil saver including, a semi-circular elastic member having upper and lower arcuate lips extending from its rear side, said lips being flat, and a metallic cage having upper and lower rearwardly extending flanges embedded within said lips.

2. A packing member for an oil saver including, a semi-circular elastic member having upper and lower arcuate lips extending from its rear side, said li s being flat, a metallic cage embedded within the elastic member and having upper and lower rearwardly extending flanges within the lips of the clastic member, and a boss carried by the cage and projecting from the rear side of the clastic member between said lips.

3. A packing member for an oil saver including, a semi-circular elastic member, and a cage having portions permanently embedded in and'surrounded by the member, 6 whereby said member and said cage are permanently united, the elastic member having rearwardly extending top and bottom lips, the top lip having a flat upper side and the bottom lip having a flat under side, the cage 10 having reinforcing portions embedded within said lips. v

4. A packing member for an oil saver ineluding, a semi-circular elastic member having upper and lower rearwardly extending flat lips on its rear side and provided on its front side with a lug and a lug recess, and a metallic cage embedded within the member having rearwardly extending flanges disposed in the lips and portions contiguous to the lug and recess for reinforcing the same. In testimony whereof I aflix my si ature;

CHARLES S. CRIC ER. 

